The Arrondissement of Saint-Brieuc is a district located in the Côtes-d'Armor department in the region of Brittany, France. It serves as an administrative division, encompassing several communes, with the city of Saint-Brieuc as its capital. The arrondissement is known for its coastal landscapes and rich cultural heritage. This area is characterized by a mix of urban and rural environments, featuring agricultural lands and picturesque seaside towns. The Saint-Brieuc Bay is a notable natural attraction, offering opportunities for outdoor activities such as hiking and water sports. The arrondissement plays a vital role in the local economy, supporting tourism and agriculture.